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Review
. 2018 Sep 27:2018:2568038.
doi: 10.1155/2018/2568038. eCollection 2018.

Toxicity and Bioremediation of Heavy Metals Contaminated Ecosystem from Tannery Wastewater: A Review

Bernard E Igiri  1 , Stanley I R Okoduwa  1   2 , Grace O Idoko  1 , Ebere P Akabuogu  1 , Abraham O Adeyi  1 , Ibe K Ejiogu  1
Affiliations
Review

Toxicity and Bioremediation of Heavy Metals Contaminated Ecosystem from Tannery Wastewater: A Review

Bernard E Igiri et al. J Toxicol. .

Abstract

The discharge of untreated tannery wastewater containing biotoxic substances of heavy metals in the ecosystem is one of the most important environmental and health challenges in our society. Hence, there is a growing need for the development of novel, efficient, eco-friendly, and cost-effective approach for the remediation of inorganic metals (Cr, Hg, Cd, and Pb) released into the environment and to safeguard the ecosystem. In this regard, recent advances in microbes-base heavy metal have propelled bioremediation as a prospective alternative to conventional techniques. Heavy metals are nonbiodegradable and could be toxic to microbes. Several microorganisms have evolved to develop detoxification mechanisms to counter the toxic effects of these inorganic metals. This present review offers a critical evaluation of bioremediation capacity of microorganisms, especially in the context of environmental protection. Furthermore, this article discussed the biosorption capacity with respect to the use of bacteria, fungi, biofilm, algae, genetically engineered microbes, and immobilized microbial cell for the removal of heavy metals. The use of biofilm has showed synergetic effects with many fold increase in the removal of heavy metals as sustainable environmental technology in the near future.

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Figures

Figure 1
Figure 1
Mechanisms of heavy metal uptake by microorganisms [47, 53].
See this image and copyright information in PMC

References

    1. Siddiquee S., Rovina K., Azad S. A. Heavy metal contaminants removal from wastewater using the potential filamentous fungi biomass: a review. Journal of Microbial and Biochemical Technology. 2015;07(06):384–393. doi: 10.4172/1948-5948.1000243. - DOI
    1. Su C. A review on heavy metal contamination in the soil worldwide: Situation, impact and remediation techniques. Environmental Skepticsand Critics. 2014;3:24–38.
    1. Hrynkiewicz K., Baum C. Application of microorganisms in bioremediation of environment from heavy metals. Environmental Deterioration and Human Health: Natural and Anthropogenic Determinants. 2014:215–227.
    1. Deepa N. C., Suresha S. Biosorption of lead (II) from aqueous solution and industrial effluent by using leaves of araucaria cookii: application of response surface methodology. IOSR Journal of Environmental Science, Toxicology and Food Technology. 2014;8(7):67–79. doi: 10.9790/2402-08716779. - DOI
    1. Okolo V. N., Olowolafe E. A., Akawu I., Okoduwa S. I. R. Effects of industrial effluents 581 on soil resource in challawa industrial area. Journal of Global Ecology and Environment. 2016;5(1):p. 10.

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